Installed OEM e93 front sway bar (28mm)

[MarkR171]

That's what I was afraid of and why I haven't pulled the trigger and ordered one yet. I've only had 4 runs on a ~45 second track with the car.

I also had the same experience as you: understeer on exits and I also switched to taking a later apex on the problem spots on the course. Doing that alone shaved 8-9 tenths.

Is there a significant chance of the car pushing MORE after installing a thicker sway bar?

[cpt97m3]

Originally Posted by MarkR171

I've been reading a lot about doing dampers/springs either before or at the same time as a sway bar swap, but considering I plan to stay in D-Stock for autocross, I cannot change my dampers/springs. Front sway change, however, is allowed.

That being said, I will be staying on an otherwise stock suspension. Would you guys recommend E92 or E93 sway or another brand? Might there be any adverse effects I should be aware of? Will it be a noticeable improvement in body roll and/or understeer on a tight autocross course?

Thanks.

For SCCA D-Stock, you can't change the springs. But you certainly can change the dampers (shocks). You can even go up to double adjustable ones from Koni or AST (No triples though in DS).

I'm running a Hotchkis front bar with a mostly stock 135, and it works well. Can't say that the M3 bar wouldn't be fine also. But it does lean less on the AutoX course, and did help some.

[cpt97m3]

Originally Posted by MarkR171

...

Is there a significant chance of the car pushing MORE after installing a thicker sway bar?

I did not find that to be the case. But there is still some understeer for sure, it's just not as bad as stock, but if you overdrive into the corner, you will have trouble.

[BMW86]

Originally Posted by cpt97m3

I did not find that to be the case. But there is still some understeer for sure, it's just not as bad as stock, but if you overdrive into the corner, you will have trouble.

Can you explain what you mean by overdrive into the corner? Do you mean go into the corner too fast?

Also, what do you mean by trouble?

[MarkR171]

Originally Posted by BMW86

Can you explain what you mean by overdrive into the corner? Do you mean go into the corner too fast?

Also, what do you mean by trouble?

From my experience, what he possibly means is turning in too early. I was able to lower my times and mend most of my understeer problems by braking for a corner later and taking a late apex. Exit understeer was almost non-existent and I was able to carry more speed.

[BMW86]

I went ahead and ordered the E93 sway bar today. Can somebody confirm that these are the only parts I needed?

E93 Sway Bar
Stabilizer front: 31352283965
Rubber bushing, antiroll bar, bottom: 31352283967 (x2 qty)
Rubber bushing, antiroll bar, top: 31352283968 (x2 qty)
STABILIZER SUPPORT: 31352283037 (x2 qty)

[Bimmer-Bob]

Originally Posted by BMW86

I went ahead and ordered the E93 sway bar today. Can somebody confirm that these are the only parts I needed?

E93 Sway Bar
Stabilizer front: 31352283965
Rubber bushing, antiroll bar, bottom: 31352283967 (x2 qty)
Rubber bushing, antiroll bar, top: 31352283968 (x2 qty)
STABILIZER SUPPORT: 31352283037 (x2 qty)

You're running an otherwise stock suspension, right? If so, give us a review when you get the bar on, if you don't mind. I'd like to do a full suspension replacement eventually, but I'm considering doing this bar first since it looks like a pretty simple DIY. I probably wouldn't be able to get to springs and dampers for about a year - I'm just wondering if it's worth it to do the bar now or wait to do everything together.

[IndyMike]

Originally Posted by BMW86

I went ahead and ordered the E93 sway bar today. Can somebody confirm that these are the only parts I needed?

E93 Sway Bar
Stabilizer front: 31352283965
Rubber bushing, antiroll bar, bottom: 31352283967 (x2 qty)
Rubber bushing, antiroll bar, top: 31352283968 (x2 qty)
STABILIZER SUPPORT: 31352283037 (x2 qty)

Yep! That's the exact kit you need.

[escobar929]

Originally Posted by Bimmer-Bob

You're running an otherwise stock suspension, right? If so, give us a review when you get the bar on, if you don't mind. I'd like to do a full suspension replacement eventually, but I'm considering doing this bar first since it looks like a pretty simple DIY. I probably wouldn't be able to get to springs and dampers for about a year - I'm just wondering if it's worth it to do the bar now or wait to do everything together.

he has KW v2 but I would also like to hear his thoughts on how the new sway bar is after installing

[BMW86]

Originally Posted by Bimmer-Bob

You're running an otherwise stock suspension, right? If so, give us a review when you get the bar on, if you don't mind. I'd like to do a full suspension replacement eventually, but I'm considering doing this bar first since it looks like a pretty simple DIY. I probably wouldn't be able to get to springs and dampers for about a year - I'm just wondering if it's worth it to do the bar now or wait to do everything together.

I've got KW V2's mate. Will post a review when I get the sway bar.

Originally Posted by IndyMike

Yep! That's the exact kit you need.

Cheers, thanks for confirming.

Originally Posted by escobar929

he has KW v2 but I would also like to hear his thoughts on how the new sway bar is after installing

Yepp that's right. I thought there were more members who were running KW V2's with the E93 but looks like I could possibly be the first or one of the first.

[MadMan77]

Well I finally did it. I ordered the E93 front sway bar from HPA. It only took me almost a year to do it.

[BMW86]

Originally Posted by MadMan77

Well I finally did it. I ordered the E93 front sway bar from HPA. It only took me almost a year to do it.

Are you on stock suspension? I've ordered mine too, but I think you'll get yours before I get mine. Look forward to hearing your review.

[MadMan77]

Originally Posted by BMW86

Are you on stock suspension? I've ordered mine too, but I think you'll get yours before I get mine. Look forward to hearing your review.

Yes I am stock suspension for now. I am not looking to be able to track the car yet. Once I get the bug again I will spend some money on a proper coil-over suspension. For now I am just wanting to tighten things up a bit.

Yes, I probably will get it before you do being that you are in Brisbane. I will do my best to exercise the new set up when I get it.

[BMW86]

Originally Posted by MadMan77

Yes I am stock suspension for now. I am not looking to be able to track the car yet. Once I get the bug again I will spend some money on a proper coil-over suspension. For now I am just wanting to tighten things up a bit.

Yes, I probably will get it before you do being that you are in Brisbane. I will do my best to exercise the new set up when I get it.

Based on everyone's feedback I think the E93 front sway will yield most noticeable results on stock suspension

[Kaynucke92]

I wonder how e93 sway different from Hotchik sway...

[The1]

I'm hesitant to go to the E93 sway, considering our entire suspension is stock, it might be just over kill. especially as the rear is just a little guy. when i do my sways, i'll probably play it safe and go with the e92 so that the ratios aren't as extreme.

besides, smaller is lighter, and smaller can provide slightly better ride comfort too :P

[marcus]

I am getting mine installed on thursday(I know it is easy but I am a little lazy at the moment).
Ill let you know what i think of it.

[BMW86]

Originally Posted by The1

I'm hesitant to go to the E93 sway, considering our entire suspension is stock, it might be just over kill. especially as the rear is just a little guy. when i do my sways, i'll probably play it safe and go with the e92 so that the ratios aren't as extreme.

besides, smaller is lighter, and smaller can provide slightly better ride comfort too :P

The E92 is the same size as the E82, the only difference is that it doesn't have a kink in it.

Originally Posted by marcus

I am getting mine installed on thursday(I know it is easy but I am a little lazy at the moment).
Ill let you know what i think of it.

Cool

[fatjoez]

couple newbie questions yea
- whats body roll
- is there anything wrong with the aftermarket sway bars like from JLEVI / Bimmian commercial sellers etc. & are they also better than stock
- in simple terms how does the driving feeling change after you upgrade the sway bar?
- are most of you guys upgrading front/back or both & for someone wanting to try it out which ones best to start on

[BMW86]

Originally Posted by fatjoez

couple newbie questions yea
- whats body roll
- is there anything wrong with the aftermarket sway bars like from JLEVI / Bimmian commercial sellers etc. & are they also better than stock
- in simple terms how does the driving feeling change after you upgrade the sway bar?
- are most of you guys upgrading front/back or both & for someone wanting to try it out which ones best to start on

Body roll is a reference to the load transfer of a vehicle towards the outside of a turn.

If you are genuinely considering any kind of aftermarket sway bar I recommend reading this thread from start to finish. It might seem like a lot of effort but there is some valuable information in here and I'm surprised it hasn't been made a sticky already.

It helped me make my decision and gave me the answers to all the questions you've mentioned.

[marcus]

Hey guys! So today was the day. I went to BMW to get the swaybar installed. I took the curvey way there, to see the difference. The removal took the two guys not even 10 mins.

After about 45mins they were done and I got my car back.
I didnt push the car on my way home, but I could tell that the body roll is less.

[arrutled]

well thats no fun.